1gdi

CRYSTAL STRUCTURE OF FERRIC COMPLEXES OF THE YELLOW LUPIN LEGHEMOGLOBIN WITH ISOQUINOLINE AT 1.8 ANGSTROMS RESOLUTION (RUSSIAN)

spinqualitylabelsall models 1gdi, resolution 1.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1gdi is a 1 chain structure with sequence from Lupinus luteus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.8Å Ligands: CMO, HEM Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LGB2_LUPLU Provides oxygen to the bacteroids. This role is essential for symbiotic nitrogen fixation. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Haemoglobins have the ability to discriminate between oxygen and other diatomic molecules. To further understanding of this process the X-ray crystal structures of carbonmonoxy and nitrosyl-leghaemoglobin have been determined at 1.8 A resolution. The ligand geometry is discussed in detail and the controversial issue of bent versus linear carbon monoxide binding is addressed. The bond angle of 160 degrees for CO-leghaemoglobin is in conflict with recent spectroscopy results on myoglobin but is consistent with angles obtained for myoglobin X-ray crystal structures. In contrast to the numerous carbon monoxide studies, very little stereochemical information is available for the nitric oxide adduct of haemoglobin. This is provided by the X-ray structure of NO-leghaemoglobin, which conforms to expected geometry with an Fe-NO angle of 147 degrees and a lengthened iron-proximal histidine bond. Thus crystallographic evidence is given for the predicted weakening of this bond on the binding of nitric oxide. The binding of carbon monoxide and nitric oxide to leghaemoglobin in comparison with other haemoglobins.,Harutyunyan EH, Safonova TN, Kuranova IP, Popov AN, Teplyakov AV, Obmolova GV, Valnshtein BK, Dodson GG, Wilson JC J Mol Biol. 1996 Nov 22;264(1):152-61. PMID:8950274 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Hemoglobin 3D structures

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